8557845 has 16 divisors (see below), whose sum is σ = 13753152. Its totient is φ = 4544000.

The previous prime is 8557819. The next prime is 8557853. The reversal of 8557845 is 5487558.

It is not a de Polignac number, because 8557845 - 2⁶ = 8557781 is a prime.

It is a super-2 number, since 2×8557845² = 146473422088050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8557797 and 8557806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2629 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (859572).

Almost surely, 2^8557845 is an apocalyptic number.

It is an amenable number.

8557845 is a deficient number, since it is larger than the sum of its proper divisors (5195307).

8557845 is a wasteful number, since it uses less digits than its factorization.

8557845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532.

The product of its digits is 224000, while the sum is 42.

The square root of 8557845 is about 2925.3794625655. The cubic root of 8557845 is about 204.5446566074.

The spelling of 8557845 in words is "eight million, five hundred fifty-seven thousand, eight hundred forty-five".